The influence of cognitive-perceptual style on the architecture of segmental postural corrections and muscle synergies during sensory conflict in healthy individuals

This repository contains raw data from the analysis "The influence of cognitive-perceptual style on the architecture of segmental postural corrections and muscle synergies during sensory conflict in healthy individuals". We recorded three‑dimensional movement kinematics using an optical motion capture system (Qualisys AB, Gothenburg, Sweden). The system included 10 Oqus 700+ infrared cameras with a sampling frequency of 300 Hz. We used spherical reflective markers of 12 mm diameter as passive markers. Qualisys/ - this folder contains 3D motion capture data: The following markers were used in the analysis: Front knee R, Knee Lat R, Front knee L, Knee Lat L, Shoulder L, Shoulder R, Temple R, Temple L, Nape, Back Up Med L, Front Up Med L, Front Up Med R, 7th cervical vertebra, Back Up Med R, Wrist R, Wrist L, Elbow L, Elbow R. In case of a temporal dropout of a marker, the closest marker in the horizontal plane was used. Note that, in our setup, X data corresponds to the sagittal plane, while Y coordinate corresponds to the frontal plane. All measurements are given in mm. The Z coordinate represents the person's height. No correction for the height of the stabilometric platform was made during data collection. We recorded muscle electrical activity using a Trigno Wireless System (Delsys Inc., Boston, USA) for surface EMG. We placed sensors over the heads of the following muscles: m. soleus (Sol), m. gastrocnemius medialis (GM), m. gastrocnemius lateralis (GL), m. tibialis anterior (TA), m. vastus lateralis (VL), m. vastus medialis (VM), m. biceps femoris (BF), m. quadratus lumborum (QL), and m. deltoideus (Del). Before attaching sensors, we degreased the skin with 70% ethyl alcohol to reduce skin‑electrode impedance. We fixed the integrated bipolar electrodes (interelectrode distance 10 mm) using a double‑sided adhesive interface to ensure stable contact during dynamic loading. Signals were recorded at a sampling frequency of 2148 Hz. sEMG/ - this folder contains surface electromyography recordings collected during the analysis. We used an automated “Stabilan‑01‑2” complex (OKB RITM JSC, Taganrog, Russia) with a sampling frequency of 50 Hz. The system includes a stabiloplatform and a recording unit (computer with StabMed 2.13 software). We analyzed two parameters: ellipse area (mm²), which describes the trajectory of the CoP projection on the stabilographic platform, and CoP velocity (V, m/s). The collected stabilometric data can be found in the stabilometric_data file.